Commit Graph

32686 Commits

Author SHA1 Message Date
Tobin C. Harding 36bde81e23 docs: add index entry for networking/msg_zerocopy
Currently msg_zerocopy is not included in any toctree. Sphinx emits a
build warning to this effect. The other three rst files in
Documentation/networking are all indexed. We can add msg_zerocopy to the
toctree to enable navigation of the document via HTML kernel docs.

Add msg_zerocopy to the networking/ toctree.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-08 14:20:57 -07:00
NeilBrown 0b345d722e Documentation: security/credentials.rst: explain need to sort group_list
This patch updates the documentation with the observations that led
to commit bdcf0a423e ("kernel: make groups_sort calling a
responsibility group_info allocators") and the new behaviour required.
Specifically that groups_sort() should be called on a new group_list
before set_groups() or set_current_groups() is called.

Signed-off-by: NeilBrown <neilb@suse.com>
[jc: use proper :c:func: references]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-08 14:20:31 -07:00
Thomas Gleixner aa19a176df Documentation: Add license-rules.rst to describe how to properly identify file licenses
Add a file to the Documentation directory to describe how file licenses
should be described in all kernel files, using the SPDX identifier, as well
as where all licenses should be in the kernel source tree for people to
refer to (LICENSES/).

Thanks to Kate and Greg for review and editing and Jonas for the
suggestions concerning the meta tags in the licenses files.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jonas Oberg <jonas@fsfe.org>
Reviewed-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-06 10:58:02 -07:00
Adam Borowski 91581e4c60 fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at
This link is replicated in most filesystems' config stanzas.  Referring
to an archived version of that site is pointless as it mostly deals with
patches; user documentation is available elsewhere.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
CC: Alexander Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Acked-by: David Sterba <dsterba@suse.com>
Acked-by: "Yan, Zheng" <zyan@redhat.com>
Acked-by: Chao Yu <yuchao0@huawei.com>
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Acked-by: Steve French <smfrench@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-01 12:45:37 -07:00
Masanari Iida 1892ce4cdd doc: md: Fix a file name to md-fault.c in fault-injection.txt
drivers/md/faulty.c has been renamed to md-faulty.c after
following commit merged int to the main line.

  935fe0983e .

But the file name in fault-injection.txt has not been changed.
Now the actual file name and document are in sync.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-01 12:43:09 -07:00
Matthew Wilcox 14ebc28e07 errseq: Add to documentation tree
- Move errseq.rst into core-api
 - Add errseq to the core-api index
 - Promote the header to a more prominent header type, otherwise we get three
   entries in the table of contents.
 - Reformat the table to look nicer and be a little more proportional in
   terms of horizontal width per bit (the SF bit is still disproportionately
   large, but there's no way to fix that).
 - Include errseq kernel-doc in the errseq.rst
 - Neaten some kernel-doc markup

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2018-01-01 12:40:27 -07:00
Mauro Carvalho Chehab 8ad7216316 scripts: kernel-doc: parse next structs/unions
There are several places within the Kernel tree with nested
structs/unions, like this one:

  struct ingenic_cgu_clk_info {
    const char *name;
    enum {
      CGU_CLK_NONE = 0,
      CGU_CLK_EXT = BIT(0),
      CGU_CLK_PLL = BIT(1),
      CGU_CLK_GATE = BIT(2),
      CGU_CLK_MUX = BIT(3),
      CGU_CLK_MUX_GLITCHFREE = BIT(4),
      CGU_CLK_DIV = BIT(5),
      CGU_CLK_FIXDIV = BIT(6),
      CGU_CLK_CUSTOM = BIT(7),
    } type;
    int parents[4];
    union {
      struct ingenic_cgu_pll_info pll;
      struct {
        struct ingenic_cgu_gate_info gate;
        struct ingenic_cgu_mux_info mux;
        struct ingenic_cgu_div_info div;
        struct ingenic_cgu_fixdiv_info fixdiv;
      };
      struct ingenic_cgu_custom_info custom;
    };
  };

Currently, such struct is documented as:

	**Definition**

	::
	struct ingenic_cgu_clk_info {
	    const char * name;
	};

	**Members**

	``name``
	  name of the clock

With is obvioulsy wrong. It also generates an error:
	drivers/clk/ingenic/cgu.h:169: warning: No description found for parameter 'enum'

However, there's nothing wrong with this kernel-doc markup: everything
is documented there.

It makes sense to document all fields there. So, add a
way for the core to parse those structs.

With this patch, all documented fields will properly generate
documentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:46 -07:00
Mauro Carvalho Chehab 857af3b775 docs: get rid of kernel-doc-nano-HOWTO.txt
Everything there is already described at
Documentation/doc-guide/kernel-doc.rst. So, there's no reason why
to keep it anymore.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:46 -07:00
Mauro Carvalho Chehab 93626d7a76 docs: kernel-doc.rst: add documentation about man pages
kernel-doc-nano-HOWTO.txt has a chapter about man pages
production. While we don't have a working  "make manpages"
target, add it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:46 -07:00
Mauro Carvalho Chehab bdb76f9e30 docs: kernel-doc.rst: improve typedef documentation
Add documentation about typedefs for function prototypes and
move it to happen earlier.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:46 -07:00
Mauro Carvalho Chehab 553aa3c12e docs: kernel-doc.rst: improve structs chapter
There is a mess on this chapter: it suggests that even
enums and unions should be documented with "struct". That's
not the way it should be ;-)

Fix it and move it to happen earlier.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:46 -07:00
Mauro Carvalho Chehab fc275bf3b9 docs: kernel-doc.rst: improve function documentation section
Move its contents to happen earlier and improve the description
of return values, adding a subsection to it. Most of the contents
there came from kernel-doc-nano-HOWTO.txt.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:46 -07:00
Mauro Carvalho Chehab 01f2c18073 docs: kernel-doc.rst: improve private members description
The private members section can now be moved to be together
with the arguments section. Move it there and add an example
about the usage of public:

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:45 -07:00
Mauro Carvalho Chehab 63ac85174a docs: kernel-doc.rst: better describe kernel-doc arguments
Add a new section to describe kernel-doc arguments,
adding examples about how identation should happen, as failing
to do that causes Sphinx to do the wrong thing.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:41:45 -07:00
Markus Heiser 012e93cbdb docs: fix process/submit-checklist.rst Sphinx warning
add missing indent whitespace to list item, fixes the warning:

- process/submit-checklist.rst:41: WARNING: Enumerated list ends without a blank
  line; unexpected unindent.

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:32 -07:00
Markus Heiser 2cd6ff4ac0 docs: ftrace-uses.rst fix varios code-block directives
ftrace-uses.rst is not yet included into any toctree, but since it is
a .rst file, it is parsed by the Sphinx build. Thats, why we see some
WARNINGS:

- trace/ftrace-uses.rst:53: WARNING: Definition list ends without a blank line; unexpected unindent.
- trace/ftrace-uses.rst:89: WARNING: Inline emphasis start-string without end-string.
- trace/ftrace-uses.rst:89: WARNING: Inline emphasis start-string without end-strin

Fixing the code-block directives results in a less noisy build, but the 'not
included' WARNING will be stay:

- trace/ftrace-uses.rst: WARNING: document isn't included in any toctree

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:31 -07:00
Cengiz C 91b28aeb17 i2c: update i2c-dev.h warning in documentation
`Documentation/i2c/dev-interface` gives examples for accessing i2c from
userspace.

There's a note that warns developers about the two `i2c-dev.h` header
files which were shipped with the kernel and i2c-tools separately.

However, following i2c-tools commits suggest that the header files are now
identical (in functionality) and `i2c_*` helper functions are now defined
in a separate header called `i2c/smbus.h`, which is distributed with
i2c-tools:

commit 652619121974 ("Minimize differences with kernel flavor")
commit 93caf007f4cb ("Move SMBus helper functions to include/i2c/smbus.h")

Thus, I've converted the warning paragraph into a historical note and
updated the suggested header files.

Signed-off-by: Cengiz Can <cengizc@gmail.com>
Cc: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:30 -07:00
Lu Baolu 90b2a01e68 usb: doc: Update document for USB3 debug port usage
Update Documentation/driver-api/usb/usb3-debug-port.rst. This update
includes the guide for using xHCI debug capability based TTY serial
link.

Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:30 -07:00
David Sterba 481f272004 Documentation: Add myself to the enforcement statement list
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:29 -07:00
Luis R. Rodriguez 24c6a74553 Documentation: Add Luis R. Rodriguez to list of enforcement statement endorsers
Add my name to the list.

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:29 -07:00
Kees Cook c5531f2af6 Documentation: Add Kees Cook to list of enforcement statement endorsers
Add my name to the list.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:29 -07:00
Gergo Huszty d6f44b3bd8 Fixed typo in onewire generic doc
Onewire devices has 6 byte long unique serial numbers, 1 byte family
code and 1 byte CRC. Linux sysfs presents the device folder in the
form of familyID-deviceID, so CRC is not shown. The consequence is
that the device serial number is always a 12 long hex-string, but
doc says 13 in one place. This is corrected by this change.
Reference: https://en.wikipedia.org/wiki/1-Wire

Signed-off-by: Gergo Huszty <huszty.gergo@digitaltrip.hu>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:28 -07:00
Adam Borowski 651a9ee42a Documentation/filesystems/vfat.txt: fix a remark that implies UCS2
All non-historic operating systems support the full range of Unicode here,
thus you can make filenames for example in Gothic (𐌼𐌴𐍉𐍅), the other Gothic
(𝓂ℯℴ𝓌) or the third Gothic (𝗆𝖾𝗈𝗐), or declare something as 💩.

Characters above U+FFFF are encoded on four bytes.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:28 -07:00
Tobin C. Harding 227d1a61ed doc: add documentation on printing kernel addresses
Hashing addresses printed with printk specifier %p was implemented
recently. During development a number of issues were raised regarding
leaking kernel addresses to userspace. Other documentation was updated but
security/self-protection missed out.

Add self-protection documentation regarding printing kernel addresses.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:27 -07:00
Tobin C. Harding da271403a8 doc: update kptr_restrict documentation
Recently the behaviour of printk specifier %pK was changed. The
documentation does not currently mirror this.

Update documentation for sysctl kptr_restrict.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:27 -07:00
Tobin C. Harding b3ed23213e doc: convert printk-formats.txt to rst
Documentation/printk-formats.txt is a candidate for conversion to
ReStructuredText format. Some effort has already been made to do this
conversion even thought the suffix is currently .txt

Changes required to complete conversion

 - Move printk-formats.txt to core-api/printk-formats.rst
 - Add entry to Documentation/core-api/index.rst
 - Remove entry from Documentation/00-INDEX
 - Fix minor grammatical errors.
 - Order heading adornments as suggested by rst docs.
 - Use 'Passed by reference' uniformly.
 - Update pointer documentation around %px specifier.
 - Fix erroneous double backticks (to commas).
 - Remove extraneous double backticks (suggested by Jonathan Corbet).
 - Simplify documentation for kobject.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
[jc: downcased "kernel"]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-21 13:39:07 -07:00
Jonathan Corbet 2a7c7cba38 docs: Remove "could not extract kernel version" warning
This warning will happen for every normal kernel docs build and doesn't
carry any useful information.  Should anybody actually depend on this
"version" variable (which isn't clear to me), the "unknown version" value
will be clue enough.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 15:20:04 -07:00
Darren Hart (VMware) 241f67c8cc Documentation/process: Add CONFIG default value to submit-checklist
Add default value review to the submit checklist, referring to the
preference for "default n" from the previous patch added to
Documentation/kbuild/kconfig-language.txt.

Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <mmarek@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 15:06:31 -07:00
Darren Hart (VMware) b7d4ec3956 Documentation/kbuild: Add guidance for the use of default
Document the preference [1] for new CONFIG options to "default n" (or
not use default at all) in order to minimizes changes to the config,
especially to avoid "make oldconfig" growing unnecessarily from release
to release.

Document the exceptions where it is acceptable to use "default y/m" for
new CONFIG options.

1. https://lkml.org/lkml/2017/11/18/257

Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <mmarek@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 15:06:26 -07:00
Randy Dunlap d063623b6a Documentation: add UUID/GUID to kernel-api
Update kernel-doc notation in lib/uuid.c and then add UUID/GUID
function interfaces to kernel-api.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[jc: tweaked the uuid_is_valid() kerneldoc]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 15:03:08 -07:00
Randy Dunlap 3abaa5ccd9 Documentation: add Sorting section to kernel-api
Add sort() and list_sort() to the kernel API documentation in a
new "Sorting" section.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:59:31 -07:00
Scott Wood d22881dc13 Documentation: Better document the hardlockup_panic sysctl
Commit ac1f591249 ("kernel/watchdog.c: add sysctl knob
hardlockup_panic") added the hardlockup_panic sysctl, but did not add it
to Documentation/sysctl/kernel.txt.  Add this, and reference it from the
corresponding entry in Documentation/admin-guide/kernel-parameters.txt.

Signed-off-by: Scott Wood <swood@redhat.com>
Acked-by: Christoph von Recklinghausen <crecklin@redhat.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:55:29 -07:00
Fabio Estevam aa73f28e1d doc: usb: chipidea: Fix typo in 'enumerate'
Fix the spelling of 'enumerate' in this document.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:53:36 -07:00
Jonathan Corbet 40af639083 docs: Add an intro note to the maintainers handbook
...just enough to say what the purpose is and to solicit more
contributions.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:46:10 -07:00
Tobin C. Harding 9727a0144b doc: add maintainer book
There is currently very little documentation in the kernel on maintainer
level tasks. In particular there are no documents on creating pull
requests to submit to Linus.

Quoting Greg Kroah-Hartman on LKML:

    Anyway, this actually came up at the kernel summit / maintainer
    meeting a few weeks ago, in that "how do I make a
    good pull request to Linus" is something we need to document.

    Here's what I do, and it seems to work well, so maybe we should turn
    it into the start of the documentation for how to do it.

(quote references: kernel summit, Europe 2017)

Create a new kernel documentation book 'how to be a maintainer'
(suggested by Jonathan Corbet). Add chapters on 'configuring git' and
'creating a pull request'.

Most of the content was written by Linus Torvalds and Greg Kroah-Hartman
in discussion on LKML. This is stated at the start of one of the
chapters and the original email thread is referenced in
'pull-requests.rst'.

Signed-off-by: Tobin C. Harding <me@tobin.cc>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:43:24 -07:00
Elena Reshetova b6e859f6cd docs: refcount_t documentation
Some functions from refcount_t API provide different
memory ordering guarantees that their atomic counterparts.
This adds a document outlining these differences (
Documentation/core-api/refcount-vs-atomic.rst) as well as
some other minor improvements.

Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:37:11 -07:00
Stefan Tatschner 3ece780510 Documentation/driver-api/usb: Replace dead link
This link is dead:

    $ curl -vI http://usb.cs.tum.edu/usbdoc
    * Could not resolve host: usb.cs.tum.edu
    * Closing connection 0
    curl: (6) Could not resolve host: usb.cs.tum.edu

I found the document somewhere else. Let's replace it.

Signed-off-by: Stefan Tatschner <stefan.tatschner@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:35:03 -07:00
Marco Donato Torsello c1de03a4ce Documentation: kernel-hacking: corrected a typo
Corrected a typo.

Signed-off-by: Marco Donato Torsello <marcodonato.torsello@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:19:06 -07:00
Jonathan Neuschäfer 51e028e44e Documentation: mono: Update links and s/CVS/Git/
The URLs in mono.rst redirect to pages on www.mono-project.com, so let's
update them. I took the liberty to update the compilation instructions
to the Linux-specific version, because readers of the kernel
documentation will most likely use Linux.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-12-11 14:18:04 -07:00
Linus Torvalds 9c02e0601b ARM: SoC fixes for 4.15-rc
ARM SoC fixes for this merge window:
 
  - A revert of all SCPI changes from the 4.15 merge window. They had
    regressions on the Amlogic platforms, and the submaintainer isn't
    around to fix these bugs due to vacation, etc. So we agreed to revert
    and revisit in next release cycle.
 
  - A series fixing a number of bugs for ARM CCN interconnect, around
    module unload, smp_processor_id() in preemptable context, and fixing
    some memory allocation failure checks.
 
  - A handful of devicetree fixes for different platforms, fixing
    warnings and errors that were previously ignored by the compiler.
 
  - The usual set of mostly minor fixes for different platforms.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:

 - A revert of all SCPI changes from the 4.15 merge window. They had
   regressions on the Amlogic platforms, and the submaintainer isn't
   around to fix these bugs due to vacation, etc. So we agreed to revert
   and revisit in next release cycle.

 - A series fixing a number of bugs for ARM CCN interconnect, around
   module unload, smp_processor_id() in preemptable context, and fixing
   some memory allocation failure checks.

 - A handful of devicetree fixes for different platforms, fixing
   warnings and errors that were previously ignored by the compiler.

 - The usual set of mostly minor fixes for different platforms.

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
  ARM64: dts: meson-gx: fix UART pclk clock name
  ARM: omap2: hide omap3_save_secure_ram on non-OMAP3 builds
  arm: dts: nspire: Add missing #phy-cells to usb-nop-xceiv
  ARM: dts: Fix dm814x missing phy-cells property
  ARM: dts: Fix elm interrupt compiler warning
  bus: arm-ccn: fix module unloading Error: Removing state 147 which has instances left.
  bus: arm-cci: Fix use of smp_processor_id() in preemptible context
  bus: arm-ccn: Fix use of smp_processor_id() in preemptible context
  bus: arm-ccn: Simplify code
  bus: arm-ccn: Check memory allocation failure
  bus: arm-ccn: constify attribute_group structures.
  firmware: arm_scpi: Revert updates made during v4.15 merge window
  arm: dts: marvell: Add missing #phy-cells to usb-nop-xceiv
  arm64: dts: sort vendor subdirectories in Makefile alphabetically
  meson-gx-socinfo: Fix package id parsing
  ARM: meson: fix spelling mistake: "Couln't" -> "Couldn't"
  ARM: dts: meson: fix the memory region of the GPIO interrupt controller
  ARM: dts: meson: correct the sort order for the the gpio_intc node
  MAINTAINERS: exclude other Socionext SoC DT files from ARM/UNIPHIER entry
  arm64: dts: uniphier: remove unnecessary interrupt-parent
  ...
2017-12-10 08:26:59 -08:00
Linus Torvalds c465fc11e5 KVM fixes for v4.15-rc3
ARM:
  * A number of issues in the vgic discovered using SMATCH
  * A bit one-off calculation in out stage base address mask (32-bit and
    64-bit)
  * Fixes to single-step debugging instructions that trap for other
    reasons such as MMMIO aborts
  * Printing unavailable hyp mode as error
  * Potential spinlock deadlock in the vgic
  * Avoid calling vgic vcpu free more than once
  * Broken bit calculation for big endian systems
 
 s390:
  * SPDX tags
  * Fence storage key accesses from problem state
  * Make sure that irq_state.flags is not used in the future
 
 x86:
  * Intercept port 0x80 accesses to prevent host instability (CVE)
  * Use userspace FPU context for guest FPU (mainly an optimization that
    fixes a double use of kernel FPU)
  * Do not leak one page per module load
  * Flush APIC page address cache from MMU invalidation notifiers
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "ARM:
   - A number of issues in the vgic discovered using SMATCH
   - A bit one-off calculation in out stage base address mask (32-bit
     and 64-bit)
   - Fixes to single-step debugging instructions that trap for other
     reasons such as MMMIO aborts
   - Printing unavailable hyp mode as error
   - Potential spinlock deadlock in the vgic
   - Avoid calling vgic vcpu free more than once
   - Broken bit calculation for big endian systems

 s390:
   - SPDX tags
   - Fence storage key accesses from problem state
   - Make sure that irq_state.flags is not used in the future

  x86:
   - Intercept port 0x80 accesses to prevent host instability (CVE)
   - Use userspace FPU context for guest FPU (mainly an optimization
     that fixes a double use of kernel FPU)
   - Do not leak one page per module load
   - Flush APIC page address cache from MMU invalidation notifiers"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
  KVM: x86: fix APIC page invalidation
  KVM: s390: Fix skey emulation permission check
  KVM: s390: mark irq_state.flags as non-usable
  KVM: s390: Remove redundant license text
  KVM: s390: add SPDX identifiers to the remaining files
  KVM: VMX: fix page leak in hardware_setup()
  KVM: VMX: remove I/O port 0x80 bypass on Intel hosts
  x86,kvm: remove KVM emulator get_fpu / put_fpu
  x86,kvm: move qemu/guest FPU switching out to vcpu_run
  KVM: arm/arm64: Fix broken GICH_ELRSR big endian conversion
  KVM: arm/arm64: kvm_arch_destroy_vm cleanups
  KVM: arm/arm64: Fix spinlock acquisition in vgic_set_owner
  kvm: arm: don't treat unavailable HYP mode as an error
  KVM: arm/arm64: Avoid attempting to load timer vgic state without a vgic
  kvm: arm64: handle single-step of hyp emulated mmio instructions
  kvm: arm64: handle single-step during SError exceptions
  kvm: arm64: handle single-step of userspace mmio instructions
  kvm: arm64: handle single-stepping trapped instructions
  KVM: arm/arm64: debug: Introduce helper for single-step
  arm: KVM: Fix VTTBR_BADDR_MASK BUG_ON off-by-one
  ...
2017-12-10 08:24:16 -08:00
Linus Torvalds 77071bc6c4 media fixes for v4.15-rc3
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Merge tag 'media/v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 "A series of fixes for the media subsytem:

   - The largest amount of fixes in this series is with regards to
     comments that aren't kernel-doc, but start with "/**".

     A new check added for 4.15 makes it to produce a *huge* amount of
     new warnings (I'm compiling here with W=1). Most of the patches in
     this series fix those.

     No code changes - just comment changes at the source files

   - rc: some fixed in order to better handle RC repetition codes

   - v4l-async: use the v4l2_dev from the root notifier when matching
     sub-devices

   - v4l2-fwnode: Check subdev count after checking port

   - ov 13858 and et8ek8: compilation fix with randconfigs

   - usbtv: a trivial new USB ID addition

   - dibusb-common: don't do DMA on stack on firmware load

   - imx274: Fix error handling, add MAINTAINERS entry

   - sir_ir: detect presence of port"

* tag 'media/v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (50 commits)
  media: imx274: Fix error handling, add MAINTAINERS entry
  media: v4l: async: use the v4l2_dev from the root notifier when matching sub-devices
  media: v4l2-fwnode: Check subdev count after checking port
  media: et8ek8: select V4L2_FWNODE
  media: ov13858: Select V4L2_FWNODE
  media: rc: partial revert of "media: rc: per-protocol repeat period"
  media: dvb: i2c transfers over usb cannot be done from stack
  media: dvb-frontends: complete kernel-doc markups
  media: docs: add documentation for frontend attach info
  media: dvb_frontends: fix kernel-doc macros
  media: drivers: remove "/**" from non-kernel-doc comments
  media: lm3560: add a missing kernel-doc parameter
  media: rcar_jpu: fix two kernel-doc markups
  media: vsp1: add a missing kernel-doc parameter
  media: soc_camera: fix a kernel-doc markup
  media: mt2063: fix some kernel-doc warnings
  media: radio-wl1273: fix a parameter name at kernel-doc macro
  media: s3c-camif: add missing description at s3c_camif_find_format()
  media: mtk-vpu: add description for wdt fields at struct mtk_vpu
  media: vdec: fix some kernel-doc warnings
  ...
2017-12-08 13:18:47 -08:00
Linus Torvalds 78d9b04844 DeviceTree fixes for v4.15 (part2):
- Fixes from overlay code rework. A trifecta of fixes to the locking,
   an out of bounds access, and a memory leak in of_overlay_apply().
 
 - Clean-up at25 eeprom binding document
 
 - Remove leading '0x' in unit-addresses from binding docs
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Merge tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:
 "Another set of DT fixes:

   - Fixes from overlay code rework. A trifecta of fixes to the locking,
     an out of bounds access, and a memory leak in of_overlay_apply()

   - Clean-up at25 eeprom binding document

   - Remove leading '0x' in unit-addresses from binding docs"

* tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: overlay: Make node skipping in init_overlay_changeset() clearer
  of: overlay: Fix out-of-bounds write in init_overlay_changeset()
  of: overlay: Fix (un)locking in of_overlay_apply()
  of: overlay: Fix memory leak in of_overlay_apply() error path
  dt-bindings: eeprom: at25: Document device-specific compatible values
  dt-bindings: eeprom: at25: Grammar s/are can/can/
  dt-bindings: Remove leading 0x from bindings notation
  of: overlay: Remove else after goto
  of: Spelling s/changset/changeset/
  of: unittest: Remove bogus overlay mutex release from overlay_data_add()
2017-12-08 13:00:51 -08:00
Geert Uytterhoeven 3bcca2c271 dt-bindings: eeprom: at25: Document device-specific compatible values
Document the recommended presence of a device-specific compatible value,
and list examples that are already in use or soon will be.
This will allow checkpatch to validate compatible values in DTS.

Update the example to match current best practices (generic node name,
specific compatible value first).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-12-06 15:11:43 -06:00
Geert Uytterhoeven ba341abd54 dt-bindings: eeprom: at25: Grammar s/are can/can/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-12-06 15:11:39 -06:00
Mathieu Malaterre 4c9847b737 dt-bindings: Remove leading 0x from bindings notation
Improve the binding example by removing all the leading 0x to fix the
following dtc warnings:

Warning (unit_address_format): Node /XXX unit name should not have leading "0x"

Converted using the following command:

find Documentation/devicetree/bindings -name "*.txt" -exec sed -i -e 's/([^ ])\@0x([0-9a-f])/$1\@$2/g' {} +

This is a follow up to commit 48c926cd34

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Rob Herring <robh@kernel.org>
2017-12-06 14:56:33 -06:00
Radim Krčmář d29899a30f KVM: s390: Fixes for 4.15
- SPDX tags
 - Fence storage key accesses from problem state
 - Make sure that irq_state.flags is not used in the future
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Merge tag 'kvm-s390-master-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux

KVM: s390: Fixes for 4.15

- SPDX tags
- Fence storage key accesses from problem state
- Make sure that irq_state.flags is not used in the future
2017-12-06 15:55:44 +01:00
Christian Borntraeger bb64da9aba KVM: s390: mark irq_state.flags as non-usable
Old kernels did not check for zero in the irq_state.flags field and old
QEMUs did not zero the flag/reserved fields when calling
KVM_S390_*_IRQ_STATE.  Let's add comments to prevent future uses of
these fields.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2017-12-06 09:18:43 +01:00
Linus Torvalds f81c728745 GPIO fixes for the v4.15 cycle:
- Fix a crash in the 74x164 driver
 - Fix IRQ banks in the DaVinci driver
 - Fix the vendor prefix in the PCA953x driver
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Merge tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "Three small fixes for GPIO. Not much, I'm surprised by the silence in
  my subsystems. All driver fixes:

   - fix a crash in the 74x164 driver

   - fix IRQ banks in the DaVinci driver

   - fix the vendor prefix in the PCA953x driver"

* tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: pca953x: fix vendor prefix for PCA9654
  gpio: davinci: Assign first bank regs for unbanked case
  gpio: 74x164: Fix crash during .remove()
2017-12-05 08:44:19 -08:00
Linus Torvalds fd6d2e506c A handful of documentation fixes. The most significant of these addresses
a problem with the new warning mode: it can break the build when confronted
 with a source file containing malformed kerneldoc comments.
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Merge tag 'docs-4.15-fixes' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of documentation fixes.

  The most significant of these addresses a problem with the new warning
  mode: it can break the build when confronted with a source file
  containing malformed kerneldoc comments"

* tag 'docs-4.15-fixes' of git://git.lwn.net/linux:
  Documentation: fix docs build error after source file removed
  scsi: documentation: Fix case of 'scsi_device' struct mention(s)
  genericirq.rst: Remove :c:func:`...` in code blocks
  dmaengine: doc : Fix warning "Title underline too short" while make xmldocs
  scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
2017-12-04 13:55:28 -08:00